vortex_array/arrays/constant/compute/
mask.rs

1// SPDX-License-Identifier: Apache-2.0
2// SPDX-FileCopyrightText: Copyright the Vortex contributors
3
4use vortex_dtype::Nullability;
5use vortex_error::VortexResult;
6use vortex_mask::Mask;
7
8use crate::ArrayRef;
9use crate::IntoArray;
10use crate::arrays::ConstantArray;
11use crate::arrays::ConstantVTable;
12use crate::arrays::MaskedArray;
13use crate::compute::MaskKernel;
14use crate::compute::MaskKernelAdapter;
15use crate::register_kernel;
16use crate::validity::Validity;
17
18impl MaskKernel for ConstantVTable {
19    fn mask(&self, array: &ConstantArray, mask: &Mask) -> VortexResult<ArrayRef> {
20        MaskedArray::try_new(
21            array.to_array(),
22            Validity::from_mask(!mask, Nullability::Nullable),
23        )
24        .map(|a| a.into_array())
25    }
26}
27
28register_kernel!(MaskKernelAdapter(ConstantVTable).lift());
29
30#[cfg(test)]
31mod test {
32    use crate::arrays::ConstantArray;
33    use crate::compute::conformance::mask::test_mask_conformance;
34
35    #[test]
36    fn test_mask_constant() {
37        let array = ConstantArray::new(std::f64::consts::PI, 15);
38        test_mask_conformance(array.as_ref());
39    }
40}